Powder mixing device



July 14, 1936. E. ESSILEN POWDER MIXING DEVICE Filed Dec. 22, 1934 .ZZW" patented July 14, 1935 UNITED STATES Fries Application December 22,1934, Serial No. 758,844

In Germany November 2'7, 1934 3 Claims.

This invention relates to a powder mixing deyice having a rotatablebrush and intended chiefly for home use for mixing slight amounts ofpowder, such as face powders of different color,

5 very quickly and simply so as to produce a mixture adapted to thecomplexion of the user.

To attain its object the invention provides for a rodlike brush movablyand reversibly arranged in the removable cover of a cylindricalcontainer for the powders to be mixed and corresponding in useful lengthto the diameter of the bottom of the container.

This construction makes it possible to put the powders to be mixed intothe container without any impediment on the part of the brush and tostart mixing immediately after the cover has been attached. Covering thebottom and part of the wall of the container, the brush takes up thepowders lying on the bottom of the container, moves them to and fro byreversing motion and turns them over and over until a thorough mixtureis effected within a very short time.

By way of example, the invention is illustrated in the accompanyingdrawing, in which Figures 1 and 2 are vertical sections of the device,showing the brush in different positions.

Referring to the drawing,the device comprises a container a forreceiving the powders to be mixed and a removable cover b which overlapsthe container a at c and is fitted with a bottom plate at secured to aflange e of the cover I). The bar 6 serves for centering the cover band, in connection with the overlapping portion 0 of the cover b,effectively prevents the escape of powder bottom and extending with itspart g into the container (1. and with its part II. into the bellshapedportion of the cover b. The case 9, it serves as a guide for a tube ishaving a bottom i, which is displaceable in the case g, h and influencedby a spring Z disposed 'in the case g, h. The tube It passes through thebell-shaped portion of the cover b and has a handle m for convenientlymoving it downwardly against the pressure of the spring Z to bring itout of the position shown in Fig. 1 into the position according to Fig.2 whereby a rodlike brush 0 rigidly connected with a spindle n is causedto carry out reversible motions. The spindle n has a cylindricalprojection p which passes through the bottom 7'' of the case'g andserves as carrier of the brush 0. By means of the projection or pin 13and the cam t the brush 0 is rigidly connected with the spindle n whichis thus secured against axial displacement without being impeded as torotary motion. Rotary motion is imparted to the spindle 12 through thebottom iof the tube k, which is constructed so as to correspond to thecross section of the spindle n, the bottom 2' thus forming a nut forsaid spindle. At its top end the spindle n carries a shell q whichlimits the uppermost position of the tube It, the downward motion of thetube It being limited by a collar r of the case h, for which purpose thetube la is provided with a jacket s which surrounds the case it andrests on the collar 2' when the tube is is in lowermost position.

The device functions as follows:

The cover 17 is removed from the container a, and the powders to bemixed are filled into the latter. Then the cover is put back and mixingstarted by pressure applied to the handle 111.. When the handle m isdepressed, the tube 70 is moved down and, owing to the speciallyconstructed bore of the bottom 2', causes rotation of thespindle 11. andthus of the brush 0. Reduction of the pressure applied to the handle mcauses the spring I to push up the tubelc, the bottom plate i of thetube is turning the spindle n in a direction opposite to that prevailingduring the descent, and continual up and down motion of the handle mwill result in rapid to and fro motion of the spindle n and brush 0whereby a thorough mixture of the powders is effected. The charging holeof the container 0. is large enough to permit instant removal of themixed powder by means of a puff so as to dispense with filling themixture into a separate container.

I claim:-

1. Powder mixing device, comprising a cylindrical powder container, aremovable bell-shaped cover for said container, a rotatable rodlikebrush, means for securing said brush to said cover, a bottom plate forsaid cover, a case carried by said bottom plate in the center thereofand extending partly into said container and partly into and throughsaid bell-shaped cover, a vertically displaceable bottomed tube guidedin said case, a rotatable spindle in said tube and case, a springarranged in said case and adapted to act upon said tube, a handle at thetube end extending through the cover for moving the tube down againstthe pressure of said spring and thereby rotating said spindle, and meansfor rigidly connecting said spindle with said brush.

2. In a powder mixing device according to claim 1 a collar on the caseand a jacket surrounding the tube and case and resting on said collarwhen the tube is in lowermost position to limit the downwarddisplacement thereof.

3. In a powder mixing device according to claim 1 a cylindricalprojection forming part of the spindle and extending through the bottomof the case and being rigidly connected with the brush, and a shellarranged at the top end of the spindle for limiting the upwarddisplacement of the tube.

EUGEN ESSLEN.

